The second video board of the ORDINATOR was built to generate the
video signal for a single display monitor. It is a pure output
device that continually encodes the contents of a region of
system memory into a video signal. Functionally, the board
is identical to the first video board,
except for the memory segments that it occupies. Under TS,
this board is coupled with the second keyboard and known as
the VIDEO1 device.
The second video board was built using the same Teflon wiring system
used for most of the other boards, because the recycled wire-wrap sockets
used for the first board developed intermittent faults and proved to be cumbersome for maintenance.
video monitor and keyboard
power-on display (emulated)
When the system was powered on, the video controller was initialized but the screen memory was not, resulting in an interesting display because of the built-in blink function.
The video monitors and keyboards were DJOE-modified versions of
Philips P7000 terminals.
